baber/WOPTO huggingface dataset:
Patent GB-1017106-A (GB)
Title: Process for the preparation of substantially pure ammonia
IPC: B01D53/14
Filed: 1962-10-01
Abstract: <PICT:1017106/C1/1> Ammonia gas of 98% purity is obtained from crude ammonia liquor in a process in which a mixture of water vapour, ammonia gas and acid gas(es) at a temperature within the range 40-90 DEG  C. and having an acid gas content not exceeding 33% by volume referred to dry gas is derived from the said liquor and the vapour mixture is water-washed in a countercurrent absorber in a quantity and under such conditions that the aqueous effluent has a water content of 45-90% by weight and is at a temperature of 55-65 DEG  C. and the gaseous effluent is substantially pure ammonia free of acid gas contaminants.  Columns 4, 9, 15 represent acid and ammonia strippers 9 the absorber respectively.  Ammonia liquor containing CO2, H2S and HCN is treated in 4 with steam at 110 DEG  C. and yields a liquid effluent containing free and fixed ammonia and a diminished proportion of acid gas, and a gaseous effluent containing H2S, CO2 and HCN discharged at 33.  The liquid effluent passes to column 9 and is treated with water vapour introduced through 12, producing a vaporous mixture of ammonia, acid gas and water and a stripped liquor discharged to 10 and 11. The vapour is cooled in 13, the condensate refluxing to 9, and is washed in 15 in countercurrent with water supplied at 16. The gaseous effluent at 18 is pure ammonia, while the aqueous discharge at 22 contains the residual acid gas and is returned to the acid stripper 4. A stripper 34 beneath the absorber reduces the ammonia content of the recycled effluent.  The stripped liquor from 10 is treated with lime and discarded and that from 11 serves as recycle to acid stripper 4, or as washing liquor for absorber 15, or is discharged at 32 from the process.
Patent GB-796784-A (GB)
Title: Improvements in or relating to variable speed gearboxes
IPC: F16H47/08
Filed: 1954-12-22
Abstract: 796,784. Variable-speed gear. MIJANGOS, A. S. CALVO-. Dec. 22, 1954, No. 37090/54. Class 80 (2). [Also in Group XXXV] A reaction side-wheel 2 of a primary bevel planet train A, comprising also an input side wheel 1 and a planet-carrying output shaft III, is connected to the output shaft III through a gear pair 6, 7 driving the planet-carrier of a secondary bevel planet gear, one side-wheel 10 of which is directly geared to the output shaft III through a gear pair 18, 19, whilst the other side-wheel 9 is indirectly variably connected thereto through a wheel pair 12, 14, including an idler 13, and a slip coupling of the fluid, magnetic, or electromagnetic type, shows as an hydraulic torque-converter C, one element 15 of which is fast to the gear 14 whilst the other, 16, is fast to the output shaft III. A stationary guide-ring 17 is provided. The output shaft III drives the load through a forward-neutralreverse gear D. Output and input shafts III, I can be directly clutched together at 5 for solid drive.
Patent GB-930448-A (GB)
Title: Process for the stagewise fluidized bed roasting of sulfidic iron minerals
Inventor: WITTMANN GEORG
IPC: C22B1/10
Filed: 1961-10-17
Abstract: Coarse grained roasted ore is obtained by the stagewise roasting of sulfidic iron minerals, such as pyrites or pyrrhotites, in fluidized beds with separate and independent supply of air to the individual fluidized beds and separate and independent withdrawal of the roasted gases from the individual fluidized beds.  The sulfidic iron mineral is introduced with a maximum grain size of 10 mm., preferably 8 mm. The height of the fluidized bed in each of the individual fluidized beds is kept at 20-35c m., preferably 25-30 cm. and the amount of air introduced hourly into the pre-roasting stage is kept between 5,700 and 20,000 m3(S.T.P.)/m2 roasting surface and the amount of air introduced hourly in the further roasting stage or stages is kept between 2,000 and 2,700 m3(S.T.P.)/m2 roasting surface.  The upper limit of the sulfur content in the preliminary roasted material is given by the atomic ratio of Fe;S equal to 1:1,20.  Flotation pyrites can be roasted by the method of the invention if they are first agglomerated into pellets with a diameter up to about 10 mm.  A conical fluidized bed furnace, constructed downwardly, can be used at least for the preroasting stage.  Specifications 811,859, 814,707 and 886,786 are referred to.
Patent GB-322116-A (GB)
Title: Improvements in and relating to picnic-kettle and like stands
IPC: A47J36/34
Filed: 1928-12-18
Abstract: 322,116. Shakespeare, H. T. Dec. 18, 1928. Supports for articles to be heated.-A kettle or like stand in which a spirit burner is placed is provided with a shroud d carried by the walls, and extending in front of, and spaced from, the air apertures c to protect them from direct air currents. In the construction shown, the upper edge of the shroud is held in a bead e at the top of the stand, and the kettle is supported on cross strips g. In a modification, a semi or completely cylindrical shroud is supported by arms projecting from the wall of the stand. A part cylindrical curtain may be adjustably mounted so that it may be moved to the windward side.
Patent GB-1462874-A (GB)
Title: Hydraulic pump
IPC: F04B53/12
Filed: 1973-04-27
Abstract: 1462874 Reciprocating pumps Z BIEGANSKI and H BIEGANSKI [trading as AB ENG CO] 22 April 1974 [27 April 1973] 37341/76 Divided out of 1462873 Heading F1A The subject-matter is the same as that of the parent Specification, but the claims are directed to the enclosure of one of the chambers within a sleeve of flexible, non-permeable material.
Patent GB-1134465-A (GB)
Title: Improvements relating to plant growth media and methods of making the same
IPC: A01G9/10
Filed: 1967-08-15
Abstract: 1,134,465. Plant growth media. AMERICAN CAN CO. Aug. 15, 1967 [Aug. 16, 1966; June 26, 1967], No.37387/67. Heading C3G. A plant growth medium comprises a felted mat of natural cellulose fibres having chemically bonded thereon a polymer formed by in situ polymerization between 50 and 500 parts of an olefinically unsaturated monomer per 100 parts of the fibres. Another bonding agent, such as water-insoluble fibres, may be present in 0.5% to 5.0% by weight of the solids, and this agent preferably comprises natural cellulose fibres having chemically bonded thereon metal salts of polyacrylic acid and formed by the polymerization of acrylonitrile, followed by hydrolysis in an alkaline medium. The medium may have a bulk density of 0.05 to 0.15 gm. per c. c. with a polymer-to-fibre weight ratio of between 0.5 to 1 and 5.0 to 1. The medium is produced by mixing the fibres, the monomer, preferably acrylonitrile, and a redox catalyst, in an aqueous medium; heating to polymerize and chemically bond to the fibres the monomer; removing the polymer modified fibres from an aqueous slurry; moulding these wet fibres into a predetermined shape and drying to rigidify this shape. The water-insoluble fibrous binder may be added to the aqueous slurry prior to the withdrawal step, and an additional step of applying a plant nutrient composition to the moulded shape, may also be included in the process. The withdrawn fibres may be moulded into a plurality of blocks spaced from each other at one end and connected to each other at their opposite end, and each of these blocks may be moulded with a hole extending longitudinally from the free end towards the connected end to receive a plant element.
Patent GB-897017-A (GB)
Title: Improvements relating to engine connecting rods
IPC: F16C7/02
Filed: 1960-11-01
Abstract: 897,017. Engine connecting-rods. DAIMLER-BENZ A.G. Nov. 1, 1960 [Nov. 10, 1959], No. 37514/60. Class 122 (1). A connecting-rod comprises an I-section stem 18 bifurcated at the big-end, the extensions of the stem flange 19, 20 beyond the bifurcation 17 being formed as rings 23, 24 to receive the crank-pin bearing shell 25 and being thickened both inwardly and outwardly of the rod in order to provide even loading on the clamping surfaces 12 between the rod and the shell. The small-end 13 has a width equal to that of the stem 18 and the bifurcation is formed by a circular aperture 26 in the stem web 21 adapted to receive the big-end of another connecting - rod (not shown). The shell is retained by collars 35, 36 thereon engaging recesses 33, 34 in the rings 23, 24.
Patent GB-1121529-A (GB)
Title: Method of processing a gas stream
Inventor: WORLEY MARVIN STEVE
IPC: C10G5/00
Filed: 1965-09-03
Abstract: Natural gas containing an acid gas component is treated in a liquid absorption stage to remove the acid gas, and in a solid adsorption stage to separate unadsorbed light hydrocarbons (e.g. methane and ethane) from adsorbed heavy hydrocarbons (e.g. propane and butane). The hydrocarbon fractions may afterwards be recombined.  In one embodiment, the heavier hydrocarbons are first separated from the acid natural gas by adsorption, the residual gas being then treated with liquid absorbent to remove the acid gas from the lighter hydrocarbons.  In a second embodiment, the acid natural gas is first treated with liquid absorbent to absorb heavier hydrocarbons and acid gas and to leave the lighter hydrocarbons as the residual gas stream. The gas evolved during regeneration of the liquid absorbent is treated with the solid adsorbent to adsorb the heavier hydrocarbons from the acid gas for subsequent recovery.  Specified adsorbents include activated alumina, silica gel and charcoal.  Specified liquid adsorbents include polybasic aliphatic alcohols, their ethers, esters and ether esters.  The solid adsorbent is desorbed and regenerated by hot light hydrocarbons from which acid gas has been removed while the liquid absorbent is regenerated by heating and flash pressure reduction.  Detailed flow diagrams illustrating both embodiments, and employing twin adsorption columns, one being "on stream" and the other being regenerated, are provided.
Patent GB-864539-A (GB)
Title: Improvements relating to the filtering of washing solutions and other liquids
Inventor: DAWSON DAVID
IPC: B01D35/00
Filed: 1957-12-07
Abstract: 864,539. Filters. DAWSON BROS. Ltd. Aug. 14, 1958 [Dec. 7, 1957], No. 38121/57. Class 46. [Also in Group XXIII] A perforated cylinder 9 on which is disposed a woven bag or sleeve 14 is slid along rollers 16 mounted in an external cylinder 1 until the end of the bag or sleeve is gripped between a tapered face 11 within the external cylinder and a ring 12 on the cylinder 9. The cylinder 9 is finally secured by a spring 13, hinged cover 4 and screwed spindle 7. Washing pump (not shown), or cleaning liquid is introduced at 2 by a pump (not shown), and discharged at 3 to jets (not shown).
Patent GB-1164978-A (GB)
Title: Constant Surveillance Alarm System.
Inventor: THOMAS ALAN EDWARD
IPC: G08B25/14
Filed: 1968-08-09
Abstract: 1,164,978. Selective signalling. ROBERTSHAW CONTROLS CO. 9 Aug., 1968 [10 Aug., 1967], No. 38122/68. Heading G4H. In an alarm system a plurality of alarm contacts A1, A2 . . . B1, B2 . . . C1, C2 . . . are located at each of a plurality of alarm zones A, B, C ., each alarm zone is connected to a central station by an associated lead 7A, 7B, 7C . . . and corresponding contacts A1, B1 C1 . . . A2, B2, C2 . . . A3, B3, C3 . . . from the alarm zones are connected to the central station by associated leads P1, P2, P3 . . . In operation activation of an alarm contact causes at the central station flashing of a lamp LA, LB, LC . . . from a multivibrator MV, indicating the zone in which the alarm event lies, and also energization of an audible alarm 53 and additional visual indications 65. An operator may then acknowledge the alarm by closing contacts 36, turning off the audible alarm and steadying the zone indicator lamp by firing an associated SCR, and finally he may close an appropriate one of a plurality of zone switches SA, SB, SC . . . (determined by the visual indication of the zone in which the alarm lies) whereupon one of a plurality of lamps PL1 . . . indicating the particular alarm within the zone, will be energized.
Patent GB-1074377-A (GB)
Title: Method of, and device for, electronic measuurment and classification of objects, more particularly flat objects, such as for example stockings, ain accordance with at least two longitudinal paameters
IPC: D06H3/16
Filed: 1965-09-07
Abstract: 1,074,377. Electric selective signalling. ELITE, VYROBA PUNCOCH, NARODNI PODNIK. Sept. 7, 1965 [Sept. 15, 1964], No. 38147/65. Heading G4H. A device for classifying objects (e.g. stockings) comprises sensing elements sensing the object and connected via coding circuits to a main register which feeds comparison circuitry to select a location for the object. A counter scans the sensing elements (4), those energized actuating coders (18) to set corresponding sections of a main register (20), the contents of which are compared (22) with those of auxiliary registers (21) corresponding to respective collection locations (7). The object is drawn by suction to the location whose comparator indicates equality, being deposited in the location when the object actuates a microswitch. Each auxiliary register stores a number representing the dimensions of objects in its location, and communicates with the main register for initially receiving this number, since when no comparison indicates equality the object is passed to the first empty location and the member from the main register placed in the corresponding auxiliary register.
Patent GB-1114120-A (GB)
Title: Method of producing metallic coated ferrous strands
IPC: C23C2/02
Filed: 1965-09-07
Abstract: A ferrous strand, which may be tubular, is coated with aluminium by cleaning, at a temperature not greater than 1000 DEG F., heating in a reducing atmosphere, e.g. ammonia, to a temperature not exceeding 1220 DEG F., and then without re-exposing to the atmosphere, passing it through a bath of molten aluminium, the speed of the strand and the temperature of the bath being such that the surface of the strand is heated to a temperature between 1200 and 1250 DEG F.  The strand may be cleaned in a salt bath (sodium nitrate and nitrite), oxidizing furnace, lead bath, aqueous alkaline solution, sodium hydride, shot or sand blast. The strand may also be pickled after cleaning.
Patent GB-1520743-A (GB)
Title: Antioxidant composition
IPC: C09K15/30
Filed: 1975-08-15
Abstract: 1520743 Lubricants OROBIS Ltd 15 Aug 1975 [2 Sept 1974] 38185/74 Heading C5F An antioxidant composition for lubricants comprises two components and where R is an.alkyl, cycloalkyl or aralkyl radical of fewer than 13 carbom atoms, R' is a tertiary alkyl, cycloalkyl or aralkyl radical of fewer than 13 carbon atoms, R<SP>2</SP> is an alkylene group containing fewer than 10 carbon atoms in the chain, and R<SP>3</SP> is an alkyl, cycloalkyl or aralkyl radical of fewer than 12 carbon atoms.
Patent GB-1016867-A (GB)
Title: Improvements in tampon applicators
IPC: A61F13/26
Filed: 1962-10-09
Abstract: 1,016,867. Tampon applicators. JOHNSON & JOHNSON. Oct. 9,1962 [Oct. 9, 1961], No. 38204/62. Heading A5R. A tampon applicator comprises an outer tampon-receiving tube 12 having two axially-spaced protuberances 24, 38 on its inner surface, and a plunger 14 having an enlargement 28 at its forward end the plunger being slidable telescopically in the tube in sliding contact with the protuberances to eject the tampon but prevented from inadvertent withdrawal by engagement between the enlargement and the protuberances. The protuberances are in the form of circumferential ribs. A tampon 20 is disposed in the forward end of the outer tube, the rear end of the tampon being disposed adjacent to or in engagement with the plunger flange 24 when held by the first circumferential rib. The rear end of the outer tube has outer ribs 40 forming a finger grip. The plunger and outer tube are made of coated or uncoated cardboard or extruded polyethylene, cellulose acetate or nylon.
Patent GB-369654-A (GB)
Title: Manoeuvre indicators for vehicles
IPC: B60Q1/34
Filed: 1930-12-19
Abstract: 369,654. Manoeuvre signalling apparatus on road vehicles. SUNBEAM MOTOR CAR CO., Ltd. and ROSE, R. H., Moorfield Works, Wolverhampton. Dec. 19, 1930, No. 38299. [Class 118 (ii).] Manoeuvre - signalling apparatus on road vehicles is incorporated with the rear window or mounted in the panel of the body of the car immediately above or below the rear window. In the arrangement shown in Figs. 1 and 2, the apparatus is built up of stencilled sheet metal stampings, pieces of red or other coloured glass, celluloid, or other transparent material being disposed against or fitted in the signal openings 4 which are each separately illuminated by an electric lamp 5, the lamps being enclosed by a front cover 6 and internal partitions 7 being provided to separate the lamps. The apparatus is formed as a separate unit disposed adjacent the upper or lower edge of the rear window 2 or is embodied in one of those edges. The roller blind 9 may be arranged along the upper or lower edges of the window to conceal the apparatus from the interior of the car. In the arrangement shown in Fig. 3 the signalling legends are formed or mounted in the panel 8 of the body of the car immediately above or below the rear window 2, concealment from the interior again being effected by the blind. The Provisional Specification describes a construction whereby the signals are formed at each side of the rear window ; states that the signalling apparatus can be concealed by the internal upholstery, access to the lamp being through a small removable panel covered by the upholstery, and also states that a signalling arrow may be placed in or on the rear window.
Patent GB-1488381-A (GB)
Title: Trivalent chromium plating bath
IPC: C25D3/06
Filed: 1975-09-01
Abstract: 1488381 Chromium electro-plating bath BNF METALS TECHNOLOGY CENTRE 1 Sept 1975 [2 Sept 1974] 38320/74 Heading C7B An aqueous Cr electro-plating bath is made by (a) holding an aqueous solution containing dissolved trivalent Cr ions at a concentration of at least 0À1 molar and a dissolved weak complexing agent for trivalent Cr at a concentration at least sufficient to complex all the Cr e.g. 0À1 to 6 molar at a pH 2À5 to 5 for at least 5 minutes, then (b) adding acid, e.g. HCl or H 2 SO 4  for respective chloride or sulphate baths, to reduce the pH, prefably by 0À5, to 1À0 to 4À0. The solution (a) is preferably heated. The weak complexing agent may be Na hypophosphite, sulphite glycine, Na citrate glycollate, gluconate, formate, formamide, acetamide, glyconolactone, citric, tartaric, maleic, glycollic, succinic, sulphamic or sulphanilic acid, succinimide, pyrrolidone, dimethylformamide, urea, thiourea or tetramethylurea. The plating bath may contain chromic and ammonium chlorides or sulphates, or chromic sulphate and KCI, with boric acid or borate. The bath may contain at least 0À5 molar of alkali or alkaline earth metal ions, 5 to 50 p.p.m. of surfactant, a phthalate ester e.g. din-pentyl phthalate in saturated solution, and 0À08 to 2 molar of hypophosphite ion. The anions may be F, Br, I or PO 4 , instead of Cl or SO 4 . For codepositing Cr with Fe and/or Ni, ions of the latter metals may also be included. A make-up solution containing the necessary trivalent Cr and weak complexing agent is also held at pH 2À5 to 5 for at least 5 minutes, then acidified to pH 1À0 to 4À0, before being added to the plating bath. For SO 4  baths anodes of magnetite or platinized Ti are preferred to C anodes for Cl baths. Specification no. 1144913 is referred to.
Patent GB-1007899-A (GB)
Title: Improvements in or relating to condensers or evaporators for cooling plants and to methods of manufacture therefor
IPC: B21D53/08
Filed: 1961-10-27
Abstract: 1,007,899. Jointing; making evaporators. R. SCHMITZ, [trading as HEINRICH SCHMITZ & SOEHNE]. Oct. 27, 1961 [Nov. 2, 1960], No. 38459/61. Headings B3A, B3Q and B3V. A method of attaching tubes 4 to lamellµ 1 for condensor or evaporator assemblies for cooling plants comprises the steps of inserting the tubes 4 into recesses U-shaped slots 2 of the lamellµ and subjecting the tubes to an externally applied pressure to effect deformation thereof against the slot sides. The lamellµ may be initially blanked having a recess 6, the inwardly projecting edges of which are subsequently bent outwardly to form U-shaped webs 3. The tubes may be .additionally retained by bending over the top portions of the webs 3.
Patent GB-1000991-A (GB)
Title: Improvements in tank trainers
Inventor: BREWER THOMAS HOWARD
IPC: G09B9/05
Filed: 1962-10-15
Abstract: 1,000,991. Training drivers. MILES ELECTRONICS Ltd. Jan. 15, 1964 [Oct. 15, 1962], No. 38929/62. Heading B7H. [Also in Division G2] In a training device which simulates driving a military tank, a monitor 8 visible through a periscope 10 in a driving vehicle 11 displays the terrain of a relief model 1 as viewed by a closed circuit television camera 5 through an optical system 6 positioned on the model 1 in response to positional signals derived by a computer 13 from control signals transmitted by transducers connected to simulated driving controls in the cubicle 11. The camera image is transmitted through a vision controller 7 to the monitor 8 and to a monitor 9 on an instructor's control unit 19 including control members for overriding those in the cubicle 11, and means for simulating engine failure or faults in the vehicle. An indicator 16 reproduces movements of the camera 5 and optical system 6 over the model 1 on a contoured chart 18. The control members in the cubicle 11 include foot and hand brakes, steering brakes, a throttle control and a gear selector, each spring-loaded or coupled to an hydraulic system simulating the degree of reaction encountered in a real vehicle. Engine temperature gauges, oil pressure gauges and warning lights in the cubicle 11 are duplicated on the instructor's unit 19. A loudspeaker 20 in the cubicle 11 relays sound effects from the computer 13. Servomotors 14, 15 controlled by the positional signals from the computer 13 displace a trolley 4 carrying the camera 5 and optical system 6 across a gantry 2, and the gantry 2 along rails 3. The optical system 6 (Fig. 4) includes a shoe 50 pivotally suspended and spring-loaded to simulate movement of a vehicle over the model 1. A transducer 62 transmits the pitch attitude of the shoe 50 to the computer, and a mirror 54 is maintained at a constant height above the shoe by a height transducer 68 and a height servomotor 69 controlling the extension of telescopic tubes 53, 70. The mirror 54 is connected to the shoe by a linkage (Fig. 5, not shown) which rotates the mirror in the pitching direction by half the pitching motion of the shoe. A collimating lens 77 above the mirror 54 transmits the mirror image to a second mirror 79 and the camera 5 through a dove prism 72 rotated to add roll effect to the image by a servomotor 76 controlled by a transducer 74 connected to the shoe 50. A heading servomotor 49 which orientates the shoe 50 and the mirror 54 in the steering direction dictated by the computer 13 modifies rotation of the dove prism to eliminate effects imposed on roll by steering. In another embodiment (Fig. 2, not shown) a lens mounted above a mirror rigidly carried by the shoe transmits the image to the camera through a flexible fibre optics tube. The cubicle 11 may be pitched and rolled by an hydraulic system controlled from the pitch and roll transducers on the shoe 50 or on an additional shoe moving over a relief model replacing the contoured chart 18.